/
hash.go
49 lines (46 loc) · 1.12 KB
/
hash.go
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package oauth2
import (
"fmt"
"strconv"
"strings"
)
type hashRule struct {
algorithm string
iterations int
length int
salt string
value string
}
func extractHashRule(hash string) (*hashRule, error) {
parts := strings.Split(hash, "$")
if len(parts) != 5 {
return nil, fmt.Errorf("invalid hashed password format")
}
subParts := strings.Split(parts[2], ",")
if len(subParts) != 2 {
return nil, fmt.Errorf("invalid hashed sub part format")
}
iterationsIndex := strings.Index(subParts[0], "=")
if iterationsIndex == -1 {
return nil, fmt.Errorf("iterations not found")
}
iterations, err := strconv.Atoi(subParts[0][iterationsIndex+1:])
if err != nil {
return nil, fmt.Errorf("invalid iterations format")
}
lengthIndex := strings.Index(subParts[1], "=")
if lengthIndex == -1 {
return nil, fmt.Errorf("length not found")
}
length, err := strconv.Atoi(subParts[1][lengthIndex+1:])
if err != nil {
return nil, fmt.Errorf("invalid length format")
}
return &hashRule{
algorithm: parts[0],
iterations: iterations,
length: length,
salt: parts[3],
value: parts[4],
}, nil
}